622144405 has 16 divisors (see below), whose sum is σ = 764225280. Its totient is φ = 485996992.

The previous prime is 622144399. The next prime is 622144409. The reversal of 622144405 is 504441226.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622144405 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622144409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106911 + ... + 112579.

It is an arithmetic number, because the mean of its divisors is an integer number (47764080).

Almost surely, 2^622144405 is an apocalyptic number.

It is an amenable number.

622144405 is a deficient number, since it is larger than the sum of its proper divisors (142080875).

622144405 is a wasteful number, since it uses less digits than its factorization.

622144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 622144405 is about 24942.8227151620. The cubic root of 622144405 is about 853.6838521579.

The spelling of 622144405 in words is "six hundred twenty-two million, one hundred forty-four thousand, four hundred five".